Go to macromedia's website, download flash, exit firefox, install flash, re-start firefox and you're done.
What it's hanging on, I think, is because the new 1.0.1 version might be reporting that it's not compatible with software for the 1.0 version. I get this with extension updates as well. 1.0.1 had to be released a lot sooner than expected, to plug a hole found where someone could make a page that will create and execute a batch file on your local drive, and I think they just haven't updated their extension/plugin database to sync it with the latest version. I've heard there was supposed to be an official 1.0.1 release sometime this month, which I assume is when the database will be synced as well.
Graphic Design / Photography / Web Design